GPT-5.4 mini
OpenAI's smaller GPT-5.4 mini model, documented in the official OpenAI API model guide for lower-latency or lower-cost GPT-5 family workloads.
Newer version: GPT-5.6 Terra
Provider
OpenAI
Model family
OpenAI GPT
Small LLM
Cost tier
Mini
Status
Legacy
Why teams choose it
Broad capability envelope
Useful when the same stack must cover chat, multimodal inputs, tooling, or structured-output shapes without juggling many SKUs.
Long-context analysis
Helps teams summarize, compare, and extract insights from long documents without losing important nuance.
Coding and tools
Works well for code assistance, tool calling, and agent workflows where instructions must stay consistent across steps.
Cost-efficient routing
Useful as part of a routing stack where cheap models handle drafts and confirmations and this tier handles genuinely hard passages.
When not to use this
- Do not assume parity with GPT-5.5 on difficult reasoning tasks.
Technical specs
- Inputs
- text, image
- Outputs
- text
- Capabilities
- coding, tool use, function calling, low latency
- License
- Proprietary API
Benchmarks
No independent or vendor benchmark scores in this catalog entry.
OpenAI GPT family lineup
Current models
Related models
GPT-5.4 mini FAQ
What is GPT-5.4 mini?
OpenAI's smaller GPT-5.4 mini model, documented in the official OpenAI API model guide for lower-latency or lower-cost GPT-5 family workloads.
When does GPT-5.4 mini fit best?
High-volume assistants
What should teams watch out for with GPT-5.4 mini?
Do not assume parity with GPT-5.5 on difficult reasoning tasks.
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